Hypersensitivity pneumonitis

Case contributed by Andrea Molinari
Diagnosis almost certain

Presentation

Dyspnea on minimal exertion.

Patient Data

Age: 40 years
Gender: Female

Uniformly diffuse low-density ill-defined centrilobular micronodules.

Mosaic oligemia with air-trapping.

Calcified nodule in right lower lobe consistent with remote phlogosis.

Case Discussion

Hypersensitivity pneumonitis includes a group of diffuse granulomatous parenchymal lung diseases caused by sensitization to a broad variety of organic or inorganic low-molecular antigens.

Typical HRCT features encompass ground-glass opacities, mosaic attenuation, and ill-defined centrilobular nodules.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.